On a lark, I plugged my Acer into the USB input port of a USB hub.
Then I plugged a USB drive, a keyboard and a mouse into the hub.
They all worked perfectly.
When I plugged in a camera (as the second USB storage device) I couldn't access it.
So apparently you can only use one device of USB Storage at a time.
Still, if you have a keyboard with a couple USB slots on the back for a mouse and a USB Thumb drive, this could make a pretty cool home-made docking station.
Then I plugged a USB drive, a keyboard and a mouse into the hub.
They all worked perfectly.
When I plugged in a camera (as the second USB storage device) I couldn't access it.
So apparently you can only use one device of USB Storage at a time.
Still, if you have a keyboard with a couple USB slots on the back for a mouse and a USB Thumb drive, this could make a pretty cool home-made docking station.